Hector’s Goby

Dive into the understated elegance of Hector’s Goby, also known as Koumansetta Hectori. In the quiet corners of coral reefs, this unassuming marine wonder holds its own charm. Let’s unravel the simple beauty and fascinating habits that make Hector’s Goby a delightful addition to any marine enthusiast’s aquarium.


Hector’s Goby may be small in stature but is big on beauty. Typically measuring around 6-8 centimeters (2.4-3.1 inches), its elongated body is adorned with vibrant colors, ranging from shades of orange and yellow to subtle blues and greens. Its standout feature is a distinct black spot near the dorsal fin, adding to its allure.


These delightful gobies are found in the Indo-Pacific region, particularly in the waters of the Indian Ocean and the Red Sea. They favor sheltered areas within coral reefs, often seen darting in and out of small crevices and seeking refuge among branching corals.


Hector’s Gobies are known for their engaging behavior. They can live in and share places which have been build by pistol shrimp or other animals.


In their natural habitat, Hector’s Gobies are omnivores, feasting on small invertebrates and zooplankton. In captivity, replicate their diet by offering a variety of high-quality marine pellets, frozen foods like brine shrimp and mysis shrimp, and live foods if possible. A well-rounded diet contributes to their health and vibrant coloration.


An added bonus of keeping these fish is that they belong to the aquarium cleaner group. In search of food, they grab small amounts of soil from the bottom of the aquarium and sift it through their gills, picking up food objects. In this way, they help to mix the topsoil in the aquarium and keep it clean.

Keeping Hector’s Goby at home

Ensuring a thriving environment for Hector’s Gobies requires careful consideration of tank setup, water parameters, and tank mates. Here are essential guidelines for their well-being:

Tank size: Provide a tank with a minimum capacity of 75 liters (20 gallons) to accommodate a pair of Hector’s Gobies. A larger tank allows for more space and enhances their natural behavior.
Water parameters: Maintain a stable water temperature between 24-28°C (75-82°F) and a pH level around 8.0-8.4. Salinity should be kept within the range of 1.020-1.025. Regular water changes help maintain water quality.
Aquarium setup: Create a reef-like environment with live rock structures, coral decorations, and sandy substrate. Ensure there are plenty of hiding spots and crevices for them to explore and establish territories.
Tank mates: Hector’s Gobies are generally peaceful but can be territorial. Compatible tank mates include other small, non-aggressive fish and invertebrates. Avoid keeping them with larger, aggressive species.

Hector’s Goby, with its vibrant colors and engaging behavior, is a delightful addition to any marine aquarium. By understanding their size, appearance, behavior, and dietary needs, you can create a thriving and visually captivating underwater world within your own home. Embrace the opportunity to care for Koumansetta Hectori, and you’ll be rewarded with endless moments of fascination and the joy of witnessing their unique interactions in your marine sanctuary.

Scientific nameKoumansetta Hectori
Type of aquariumMarine
Size6-8 cm / 2.4-3.1 inches
RegionIndo-Pacific, Indian Ocean, Red Sea
Ideal tank size75 liters / 20 gallons
Ideal water temperature24-28 °C / 72-82 °F
DietOmnivorous, pellets, frozen foods, live foods
Life spanVaries, around 5 years
SchoolingGenerally solitary, may form pairs

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